Growing Broccoli in Busia

Soil suitability analysis based on Busia's nutrient profile

Quick answer

Generally not ideal — Busia is poorly suited to Broccoli. Busia's soil (pH 5.29, strongly acidic) gives Broccoli a suitability score of 27/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Busia County is a challenging environment for Broccoli (soil-match score 27/100) and will need significant amendment before planting. At an average pH of 5.29 the soil is moderately acidic, below Broccoli's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is nitrogen, phosphorus, and potassium — measured at N 0.91 g/kg, P 16.6 mg/kg, K 175 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly clay loam soils suit Broccoli, which favours loam. At 1200 m, the county sits below Broccoli's preferred altitude range (1800–2800 m), which limits yield potential due to heat stress. On ShambaIQ's soil-match model, Broccoli is the #100 soil match of the 106 crops we assess for Busia County. Broccoli's full potential is about 6,000 kg/acre (~KES 540,000/acre at KES 90/kg), but at Busia's 27/100 suitability a realistic target here is closer to 2,025 kg/acre (~KES 182,250/acre) unless the constraints above are addressed.

Better matched to Busia's soil: Macadamia, Avocado, and Pineapple — each scores higher on the same soil.

27Suitability score

Soil & climate match

FactorBusia soilBroccoli needsStatus
pH5.2967.5Adjust
Nitrogen0.91 g/kgmin 1.2 g/kgLow
Phosphorus16.6 mg/kgmin 20 mg/kgLow
Potassium175 mg/kgmin 200 mg/kgLow
Rainfall1,400 mm800–1,500 mmOK
Altitude1,200 m1,800–2,800 mLow

Planting calendar

Long Rains

Month 1
Nursery Preparation & Transplanting & DAP Basal
Month 2
CAN Top Dressing (week 3) & Caterpillar Control
Month 3
Head Initiation Top Dress & Harvesting

Short Rains

Month 1
Nursery & Transplanting
Month 2
Top Dressing & DBM Scouting
Month 3
Harvesting

Dry Season

Month 1
Irrigation-based Transplanting
Month 2
CAN Top Dressing & Pest Management
Month 3
Harvesting & Land Preparation

Top dressing guide

Product
CAN
Timing
Week 3 then head initiation (week 6)
Instruction
Apply 3 weeks after transplanting and again at head initiation (~week 6); broccoli needs steady N for tight heads
Bags per Acre
1.5

Recommended seed varieties

CalabreseHighland
Simlaw Seeds · 70-90 days · 2–3.5 tons/acre
Open-pollinated broccoli; central head plus side shoots; suited to cool highlands.
Green Magic F1Highland
East Africa Seeds · 60-75 days · 3–4.5 tons/acre
Hybrid; uniform dome heads; heat tolerant; export and supermarket quality.
Marathon F1Highland
Royal Seeds · 75-95 days · 2.8–4.3 tons/acre
Large dense heads; downy mildew tolerant; excellent for high-altitude production.

Economics

Market priceKES 90/kg
Expected yield in Busia2,025 kg/acre
Estimated revenueKES 182,250/acre
Adjusted for Busia's 27/100 suitability. Under ideal conditions Broccoli can reach 6,000 kg/acre (~KES 540,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureLoam

Fertilizer prices

DAP
KES 3,500(6,500)
CAN
KES 2,875(5,700)
NPK 17:17:17
KES 3,275(5,600)
Urea
KES 3,500(5,500)
Lime
KES 1,500(1,800)

Green = subsidized · (Commercial) per 50kg bag